Music-leaf turner.



No. 694,839 Patented Mar. 4, I902.

C. H. DASCOMB.

MUSIC LEAF TURNER.

(Application filed. Sept. 28. 1901.]

(No Model.)

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UNITED STATES PATENT OFFICE.

CHARLES HENRY DASCOMB, OF EL PASO, TEXAS.

MUSlC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 694,839, dated March 4, 1902. Application filed eptember 28,1901. Serial No. 76,865. (No model.)

To to whom it may concern:

Be it known that 1, CHARLES HENRY DAS- COMB, a citizen of the United States and a resident of El Paso, in the county of El Paso, in the State of Texas, have made certain new and useful Improvements in Music Leaf Turners, of which the following is a specification.

My invention is an improvement in musicleaf turners, and has for an object to provide a novel construction by which the leaves may be readily turned from side to side as desired; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a perspective front elevation of my leaf-turner. Fig. 2 is a detail perspective view showing one of the key-levers and the rack and pinion operated thereby. Fig. 3 is a sectional plan view of the turner, partly broken away. Fig. i is a vertical cross-sectional view on the line a at of Fig. 1. Fig. 5 is a detail view illustrating the connection of one of the leaf-carriers with its supporting-arm, and Fig. 6 is a detail sectional view on about line 6 6 of Fig. 4.. Fig. 7 is a detail end view.

In carrying out my invention I employ a base A,which is designed to be supported upon the music-rack of a piano, organ, or other musical instrument and may be supplied on its under side and back with felt or other cushioning material to prevent injury to the cabinet-work of the instrument. On its up per side at A the base is adapted toreceive a book or sheet-1nusic in other form, and at the opposite endsof the base I provide bars 13, pivoted at B, so they can be adjusted vertically, as shown in full lines, Fig. 1, to hold the backs of a book, or to the dotted-line position shown in Fig. 1, in which position they are stopped by the flanges B of a plate B secured to the face of the base A, as shown in Fig. 1.

The operating devices include arms 0, C, and G which are pivoted at their inner ends, so they can be swung from side to side as desired, and on these arms I support the carriers D, D, and D which are alike and are composed of a pair of wire bows adapted to clamp the sheet of music between them and secured to sleeves 1, which slide along the swinging arms and are supplied with springs 2, as best shown in Fig. 5, by which to hold the carriers in any desired adjustment. At their pivoted ends the arms 0, G, and C? are provided with crank-arms E, E, and E, which journal in the bearing-frame F, as shown in Figs. 1, 3, and 4. The frame F is preferably divided by partitions f into compartment-s in which operate the pinions G, G,

and G attached to their respective shafts E, E, and E and also the rack-segments H, H, and 1-1 which are pivoted at I in the bearing-frame F, near the rear end thereof, and mesh at their toothed edges with the pinions G, G, and G as will be understood from Figs. 3 and t.

By preference the frame F is hinged at its rear end at F in connection with the base A, so the front or outer end of the said frame F may adjust vertically. To effect this adjustment of the bearing-frame F, I provide a screw J, journaled at J in connection with the base A and threaded at J in connection with the bearing-frame F; but manifestly this arrangement might be reversed and the screw be journaled to bearing-frame and threaded to the base or be otherwise arranged to edect the adjustment of the bearing-frame F as desire From the foregoing description it is evident that as the rack-segments are swung from side to side they will operate to turn their ainions and swing the arms from side to side. The key-levers are formed from wires or rods of metal secured at their middles at K to their respective rack-bars, bent into loop form extending around their rackbars and respective pinions, united together at K in advance of their rack-bars, and having extensions K which receive the keys K as will be understood from Figs. 1, 3, and 4. This construction of key-lever is simple, ef fective, balances the opposite key extensions, and enables each key-arm to serve as a brace for the other, as will be readily understood from Fig. 3 of the drawings.

It is preferred to support the bearing-frame F in a recess A formed in the front face of the base A at the under side thereof, so the crank-arms of the swinging bars can be located in close proximity to the front edge of the base A, as will be understood from Fig.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is-

1. The improvement in leaf-turners herein described comprising the base or support, the bearing-frame hinged thereto, means for ad- 3' usting said bearing-frame in connection with the base, the bearing-frame being divided by partitions into separate compartments, the swingingfarms provided with leaf-carriers and having shafts j ournaled in the bearing-frame and provided on said shafts within the compartments of the frame with pinions, the rackbars operating in the bearing-frame and meshed with their respective pinions and the key-levers composed of wires or rods secured at their middles to the segments bent in the form of a bow around the racks and their pinions and united in advance of the pinions and having extensions bearing the keys substantially as set forth.

2. In a music-leaf turner the combination of the base or support, the bearing-frame hinged in connection with the base or support, the operating-arms and their operating devices supported in the bearing-frame, and means for adjusting the said bearing-frame substantially as set forth.

3. The combination of the base or support, I the bearing-frame hinged thereto, the screw for adjusting said bearing-frame in connecbeyond said point of union adapted for the re I ception of the keys substantially as set forth.

5. The combination of the swinging arms having the pinions,, the racks meshed with the said pinions, and the key-levers fixed to the racks and bent into loop form around the same substantially as set forth. q

6. The combination of the base provided in its under side with a mortise or recess for the and adjustable within the said recess, the swinging arms provided with the pinions supported in the bearing-frame, the racks operating in the bearing-frame and meshed with the pinions, and the levers secured to the racks substantially as set forth.

CHARLES HENRY DASCOMBQ W itnesses:

H. B. HAMILTON, MANFORD- E. WILLIAMS.

bearing-frame, the bearing-frame supported 

